341 lines
8.0 KiB
C
341 lines
8.0 KiB
C
/**
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* FreeRDP: A Remote Desktop Protocol client.
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* Print Virtual Channel
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*
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* Copyright 2010-2011 Vic Lee
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <freerdp/utils/stream.h>
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#include <freerdp/utils/unicode.h>
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#include <freerdp/utils/memory.h>
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#include <freerdp/utils/thread.h>
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#include <freerdp/utils/svc_plugin.h>
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#include "rdpdr_constants.h"
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#include "rdpdr_types.h"
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#ifdef CUPS_FOUND
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#include "printer_cups.h"
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#endif
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#include "printer_main.h"
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typedef struct _PRINTER_DEVICE PRINTER_DEVICE;
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struct _PRINTER_DEVICE
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{
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DEVICE device;
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rdpPrinter* printer;
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LIST* irp_list;
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freerdp_thread* thread;
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};
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static void printer_process_irp_create(PRINTER_DEVICE* printer_dev, IRP* irp)
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{
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rdpPrintJob* printjob = NULL;
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if (printer_dev->printer != NULL)
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printjob = printer_dev->printer->CreatePrintJob(printer_dev->printer, irp->devman->id_sequence++);
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if (printjob != NULL)
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{
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stream_write_uint32(irp->output, printjob->id); /* FileId */
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DEBUG_SVC("printjob id: %d", printjob->id);
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}
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else
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{
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stream_write_uint32(irp->output, 0); /* FileId */
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irp->IoStatus = STATUS_PRINT_QUEUE_FULL;
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DEBUG_WARN("error creating print job.");
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}
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irp->Complete(irp);
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}
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static void printer_process_irp_close(PRINTER_DEVICE* printer_dev, IRP* irp)
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{
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rdpPrintJob* printjob = NULL;
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if (printer_dev->printer != NULL)
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printjob = printer_dev->printer->FindPrintJob(printer_dev->printer, irp->FileId);
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if (printjob == NULL)
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{
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irp->IoStatus = STATUS_UNSUCCESSFUL;
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DEBUG_WARN("printjob id %d not found.", irp->FileId);
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}
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else
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{
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printjob->Close(printjob);
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DEBUG_SVC("printjob id %d closed.", irp->FileId);
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}
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stream_write_zero(irp->output, 4); /* Padding(4) */
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irp->Complete(irp);
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}
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static void printer_process_irp_write(PRINTER_DEVICE* printer_dev, IRP* irp)
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{
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rdpPrintJob* printjob = NULL;
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uint32 Length;
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uint64 Offset;
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stream_read_uint32(irp->input, Length);
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stream_read_uint64(irp->input, Offset);
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stream_seek(irp->input, 20); /* Padding */
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if (printer_dev->printer != NULL)
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printjob = printer_dev->printer->FindPrintJob(printer_dev->printer, irp->FileId);
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if (printjob == NULL)
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{
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irp->IoStatus = STATUS_UNSUCCESSFUL;
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Length = 0;
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DEBUG_WARN("printjob id %d not found.", irp->FileId);
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}
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else
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{
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printjob->Write(printjob, stream_get_tail(irp->input), Length);
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DEBUG_SVC("printjob id %d written %d bytes.", irp->FileId, Length);
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}
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stream_write_uint32(irp->output, Length);
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stream_write_uint8(irp->output, 0); /* Padding */
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irp->Complete(irp);
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}
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static void printer_process_irp(PRINTER_DEVICE* printer_dev, IRP* irp)
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{
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switch (irp->MajorFunction)
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{
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case IRP_MJ_CREATE:
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printer_process_irp_create(printer_dev, irp);
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break;
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case IRP_MJ_CLOSE:
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printer_process_irp_close(printer_dev, irp);
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break;
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case IRP_MJ_WRITE:
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printer_process_irp_write(printer_dev, irp);
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break;
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default:
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DEBUG_WARN("MajorFunction 0x%X not supported", irp->MajorFunction);
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irp->IoStatus = STATUS_NOT_SUPPORTED;
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irp->Complete(irp);
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break;
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}
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}
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static void printer_process_irp_list(PRINTER_DEVICE* printer_dev)
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{
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IRP* irp;
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while (1)
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{
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if (freerdp_thread_is_stopped(printer_dev->thread))
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break;
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freerdp_thread_lock(printer_dev->thread);
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irp = (IRP*)list_dequeue(printer_dev->irp_list);
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freerdp_thread_unlock(printer_dev->thread);
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if (irp == NULL)
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break;
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printer_process_irp(printer_dev, irp);
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}
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}
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static void* printer_thread_func(void* arg)
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{
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PRINTER_DEVICE* printer_dev = (PRINTER_DEVICE*)arg;
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while (1)
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{
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freerdp_thread_wait(printer_dev->thread);
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if (freerdp_thread_is_stopped(printer_dev->thread))
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break;
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freerdp_thread_reset(printer_dev->thread);
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printer_process_irp_list(printer_dev);
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}
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freerdp_thread_quit(printer_dev->thread);
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return NULL;
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}
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static void printer_irp_request(DEVICE* device, IRP* irp)
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{
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PRINTER_DEVICE* printer_dev = (PRINTER_DEVICE*)device;
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freerdp_thread_lock(printer_dev->thread);
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list_enqueue(printer_dev->irp_list, irp);
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freerdp_thread_unlock(printer_dev->thread);
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freerdp_thread_signal(printer_dev->thread);
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}
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static void printer_free(DEVICE* device)
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{
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PRINTER_DEVICE* printer_dev = (PRINTER_DEVICE*)device;
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IRP* irp;
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freerdp_thread_stop(printer_dev->thread);
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freerdp_thread_free(printer_dev->thread);
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while ((irp = (IRP*)list_dequeue(printer_dev->irp_list)) != NULL)
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irp->Discard(irp);
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list_free(printer_dev->irp_list);
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if (printer_dev->printer)
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printer_dev->printer->Free(printer_dev->printer);
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xfree(printer_dev->device.name);
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xfree(printer_dev);
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}
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void printer_register(PDEVICE_SERVICE_ENTRY_POINTS pEntryPoints, rdpPrinter* printer)
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{
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PRINTER_DEVICE* printer_dev;
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char* port;
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UNICONV* uniconv;
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uint32 Flags;
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size_t DriverNameLen;
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char* DriverName;
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size_t PrintNameLen;
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char* PrintName;
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uint32 CachedFieldsLen;
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uint8* CachedPrinterConfigData;
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port = xmalloc(10);
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snprintf(port, 10, "PRN%d", printer->id);
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printer_dev = xnew(PRINTER_DEVICE);
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printer_dev->device.type = RDPDR_DTYP_PRINT;
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printer_dev->device.name = port;
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printer_dev->device.IRPRequest = printer_irp_request;
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printer_dev->device.Free = printer_free;
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printer_dev->printer = printer;
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CachedFieldsLen = 0;
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CachedPrinterConfigData = NULL;
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DEBUG_SVC("Printer %s registered", printer->name);
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Flags = 0;
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if (printer->is_default)
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Flags |= RDPDR_PRINTER_ANNOUNCE_FLAG_DEFAULTPRINTER;
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uniconv = freerdp_uniconv_new();
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DriverName = freerdp_uniconv_out(uniconv, printer->driver, &DriverNameLen);
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PrintName = freerdp_uniconv_out(uniconv, printer->name, &PrintNameLen);
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freerdp_uniconv_free(uniconv);
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printer_dev->device.data = stream_new(28 + DriverNameLen + PrintNameLen + CachedFieldsLen);
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stream_write_uint32(printer_dev->device.data, Flags);
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stream_write_uint32(printer_dev->device.data, 0); /* CodePage, reserved */
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stream_write_uint32(printer_dev->device.data, 0); /* PnPNameLen */
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stream_write_uint32(printer_dev->device.data, DriverNameLen + 2);
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stream_write_uint32(printer_dev->device.data, PrintNameLen + 2);
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stream_write_uint32(printer_dev->device.data, CachedFieldsLen);
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stream_write(printer_dev->device.data, DriverName, DriverNameLen);
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stream_write_uint16(printer_dev->device.data, 0);
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stream_write(printer_dev->device.data, PrintName, PrintNameLen);
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stream_write_uint16(printer_dev->device.data, 0);
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if (CachedFieldsLen > 0)
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{
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stream_write(printer_dev->device.data, CachedPrinterConfigData, CachedFieldsLen);
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}
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xfree(DriverName);
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xfree(PrintName);
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printer_dev->irp_list = list_new();
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printer_dev->thread = freerdp_thread_new();
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pEntryPoints->RegisterDevice(pEntryPoints->devman, (DEVICE*)printer_dev);
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freerdp_thread_start(printer_dev->thread, printer_thread_func, printer_dev);
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}
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int DeviceServiceEntry(PDEVICE_SERVICE_ENTRY_POINTS pEntryPoints)
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{
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rdpPrinterDriver* driver = NULL;
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rdpPrinter** printers;
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rdpPrinter* printer;
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int i;
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char* name;
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char* driver_name;
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#ifdef CUPS_FOUND
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driver = printer_cups_get_driver();
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#endif
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if (driver == NULL)
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{
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DEBUG_WARN("no driver.");
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return 1;
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}
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name = (char*)pEntryPoints->plugin_data->data[1];
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driver_name = (char*)pEntryPoints->plugin_data->data[2];
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if (name && name[0])
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{
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printer = driver->GetPrinter(driver, name);
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if (printer == NULL)
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{
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DEBUG_WARN("printer %s not found.", name);
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return 1;
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}
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if (driver_name && driver_name[0])
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printer->driver = driver_name;
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printer_register(pEntryPoints, printer);
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}
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else
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{
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printers = driver->EnumPrinters(driver);
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for (i = 0; printers[i]; i++)
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{
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printer = printers[i];
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printer_register(pEntryPoints, printer);
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}
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xfree(printers);
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}
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return 0;
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}
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